Question

Solve for x. write both solutions. separated by a comma 7x^2+8x+1=0

Answer 1

x = 1/7, -1

Explanation:

Solving by using the quadratic formula

7x^2 + 8x + 1 = 0

a = 7, b = 8, c = 1

x = (-b ± √b^2-4ac)/2a

x = (-8 ± √8^2-4·7·1)/2·7

x = (-8 ± √64-28)/14

x = (-8 ± √36)/14

x = (-8 ± 6)/14

If added:

x = (-2)/14

x = 1/7

If subtracted:

x = (-14)/14

x = -1

So the answers are x = 1/7 or x = -1

Answer 2

look at the pic

Explanation:

Simple trinomal

Glad to help!!!